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When router A receives the BGP update for the 192.168.0.1/27 prefix, it propagates it to routers B and C. What action is taken by router B when it receives the update?
Suggested Answer: B
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23 comments · newest first
FE
Fernanda
11 months ago
I agree with A, but I’m not sure about the duplicates part.
TA
Tawna
11 months ago
Wait, can router B really discard updates? That seems odd.
GA
Gabriele
11 months ago
Definitely option A, that's how BGP works!
CR
Crissy
11 months ago
I think it only sends it to router D, right?
SA
Sabra
12 months ago
Router B will propagate the update to routers D and C.
RO
Ronny
12 months ago
I’m leaning towards option D, but I’m confused about whether router B would send the update back to router A or not.
SH
Shaun
1 year ago
I feel like router B might discard the update if it already has that prefix in its BGP database, but I can't recall the exact rules for that.
ME
Meghan
1 year ago
I remember a similar practice question where a router had to decide whether to propagate an update or discard it. I think it was about detecting duplicates.
LY
Lynette
1 year ago
I think router B should propagate the update to routers D and C, but I'm not entirely sure if it would send it back to router A as well.
WE
Weldon
1 year ago
I'm confident I can solve this. The key is understanding that router B should not propagate the update back to the originating router, A, and should only send it to the other neighbors.
TE
Tegan
1 year ago
Okay, I think I've got this. When router A sends the BGP update, router B should propagate it to the other routers it's connected to, but not back to router A.
EV
Eveline
1 year ago
Hmm, I'm a bit unsure about this one. I'll need to review my BGP knowledge to make sure I understand how updates are handled and propagated between routers.
GE
Genevive
1 year ago
This looks like a standard BGP update propagation question. I'll need to carefully consider the network topology and BGP behavior to determine the correct action taken by router B.
AL
Alison
1 year ago
This seems like a classic Monte Carlo simulation problem. I'll need to model the probability distributions for each task and run multiple iterations to get the overall project duration.
MI
Mira
1 year ago
Hmm, I'm a bit confused by the wording here. I'll need to make sure I understand the difference between the various tools mentioned.
KA
Kandis
2 years ago
I agree with Ria, C) Router B detecting duplicates seems like the correct action
AS
Ashanti
2 years ago
Hmm, that makes sense. But I think it could also be A) Router B propagates the BGP update to routers D and C
RI
Ria
2 years ago
I believe the answer is C) Router B detects duplicates in its BGP database and discards the update
AS
Ashanti
2 years ago
What do you think the answer is for this question?
PI
Pilar
2 years ago
I agree with Eden, router B should propagate the update to routers D and C for better network efficiency.
FL
Fletcher
2 years ago
I think router B detects duplicates in its BGP database and discards the update.
CH
Cherry
2 years ago
I believe router B propagates the BGP update to router D.
ED
Eden
2 years ago
I think router B propagates the BGP update to routers D and C.